Charlene Liao, MD
NPI 1700414042 · Family Medicine Physician · Fairfield, CT
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charlene Liao, MD is a Family Medicine Physician provider in Fairfield, CT (NPI 1700414042).
Provider details
- NPI number
- 1700414042
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 75746 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
373 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 133 | $134 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 69 | $94 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 59 | $135 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 32 | $175 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial VisitG0438 | 21 | $171 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 131 | 54 |
| Amlodipine Besylate | 119 | 44 |
| Rosuvastatin Calcium | 82 | 38 |
| Lisinopril | 69 | 26 |
| Losartan Potassium | 55 | 25 |
| Metformin Hcl | 54 | 23 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-31
- Last updated
- 2023-10-12
- Certified
- 2023-10-12
Frequently asked questions
- What is Charlene Liao's NPI number?
- Charlene Liao's National Provider Identifier (NPI) is 1700414042, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlene Liao's specialty?
- Charlene Liao is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charlene Liao located?
- Charlene Liao's practice location on file with NPPES is 1152 Kings Highway Cutoff, Fairfield, CT 06824-5271.
- What is Charlene Liao's phone number?
- The practice phone number listed in the NPPES registry for Charlene Liao is (203) 256-5500.
- Does Charlene Liao accept Medicare?
- Charlene Liao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charlene Liao's NPI active?
- Yes — Charlene Liao's NPI (1700414042) is active in the NPPES registry as of the last update on 2023-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.